When to visit
Thunder Bay?

Discover the best time of year, based on historical climate, temperature, and precipitation.

Thunder Bay
Ontario · Canada

The best time to visit Thunder Bay is June, July, August, when the weather, flight prices, and crowds align. — consistent weather climate

Climate score
June
84

Excellent climate

🌥Mild

Temperature
10–19°C
Nuits froides — prenez des couches
Feels like
8–18°C
Sec
Precipitation
68mm
Pluie modérée · 8 days
Sunshine
12.0h
Souvent nuageux
Humidity (%)
76%
Sec
Annual Climate Analysis
Temperature, Rain & Feels Like
Rain
Actual Temp
Feels Like
-30°-20°-10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Tourist Crowds
Monthly visitor flow
83
High season
050100JanFebMarAprMayJun83JulAugSepOctNovDec
Monthly Overview
Score131516184784868579271111
ClimatePolarPolarPolarColdColdMildPleasantPleasantMildColdColdPolar
Temperature-14–-7°C-15–-7°C-8–0°C-2–6°C4–13°C10–19°C14–23°C15–22°C11–18°C5–11°C-2–3°C-10–-3°C
Feels like-20–-12°C-21–-12°C-13–-4°C-7–2°C1–11°C8–18°C14–24°C14–22°C10–18°C1–8°C-7–-1°C-15–-8°C
Precipitation31mm
9 days
35mm
8 days
38mm
7 days
72mm
10 days
72mm
8 days
68mm
8 days
68mm
6 days
67mm
7 days
87mm
8 days
73mm
10 days
59mm
10 days
54mm
11 days
Sunshine4.3h
☀︎ 49%
7.0h
☀︎ 69%
8.6h
☀︎ 72%
8.6h
☀︎ 63%
10.8h
☀︎ 71%
12.0h
☀︎ 75%
12.7h
☀︎ 81%
11.1h
☀︎ 77%
9.1h
☀︎ 72%
5.6h
☀︎ 52%
3.8h
☀︎ 41%
3.4h
☀︎ 40%
WindNO · 18 km/hNO · 19 km/hNO · 19 km/hNE · 20 km/hE · 18 km/hSE · 17 km/hSO · 17 km/hSO · 17 km/hSO · 18 km/hO · 19 km/hO · 21 km/hNO · 20 km/h
Humidity (%)75%71%71%70%72%76%77%78%80%77%76%75%
Day length8.8h10.2h11.9h13.7h15.2h16.0h15.6h14.3h12.6h10.8h9.2h8.4h
Tourist CrowdsLow seasonLow seasonLow seasonShoulder seasonShoulder seasonHigh seasonHigh seasonHigh seasonHigh seasonShoulder seasonShoulder seasonShoulder season

Frequently asked questions

What is the best time to visit Thunder Bay?

The best time to visit Thunder Bay is July, August, June, September, with temperatures between 10 °C and 23 °C. The best month is July. July is high season.

What is the weather like in Thunder Bay?

Thunder Bay has a climate with an overall score of 4.1/10. Annual temperatures range from -15 °C to 23 °C.

What is the hottest month in Thunder Bay?

The hottest month in Thunder Bay is July, with average highs of 23 °C and lows of 14 °C.

What is the rainiest month in Thunder Bay?

The rainiest month in Thunder Bay is September, with an average of 87 mm of precipitation.

When is peak season in Thunder Bay?

Peak season in Thunder Bay is June, July, August, September. This is the most popular period, with the highest tourism levels and prices.

When is shoulder season in Thunder Bay?

Shoulder season in Thunder Bay falls in April, May, October, November, December. It offers a good balance of decent weather and lower prices compared to peak season.